Medium modification of meson propagation between two nucleons in finite nuclei

H. Sarafian, M. B. Johnson, E. R. Siciliano

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

We derive simple expressions for the effect of medium modifications (or distortions) on the propagation of a pion between two nucleons in a nucleus. Our results are applicable to pion reactions in a variety of situations, but we are particularly interested in the influence of distortions on pion double charge exchange at low energy. We are able to calculate these distortions for a finite nucleus using a realistic choice of optical potential. We represent their effect as a modification of the S- and P-wave pion-nucleon scattering amplitudes that occur at the location of the first (or last) nucleon to be struck. We illustrate our method by showing numerical results for a shematic optical potential.

Original languageEnglish (US)
Pages (from-to)1988-1998
Number of pages11
JournalPhysical Review C
Volume48
Issue number4
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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